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test: compile quantity_test.cpp with -DUNITS_DOWNCAST_MODE=0

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Johel Ernesto Guerrero Peña authored and Mateusz Pusz committed 2021-03-15 14:24:26 +01:00
1 parent b18061ab0e
commit 3002c5673d
6 files changed
+36 -20
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src/include/units/quantity_cast.h
+10 -7
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@@ -50,8 +50,11 @@ class quantity_point_kind;
namespace detail {
template<typename T>
inline constexpr ratio quantity_ratio = std::enable_if_t<!Quantity<T>>{};
template<typename D, typename U, typename Rep>
constexpr auto quantity_ratio(const quantity<D, U, Rep>&)
inline constexpr ratio quantity_ratio<quantity<D, U, Rep>> = []
{
if constexpr(BaseDimension<D>) {
return U::ratio;
@@ -59,18 +62,18 @@ constexpr auto quantity_ratio(const quantity<D, U, Rep>&)
else {
return D::base_units_ratio * U::ratio / D::coherent_unit::ratio;
}
}
}();
template<typename Q1, typename Q2>
constexpr ratio cast_ratio(const Q1& from, const Q2& to)
template<typename QFrom, typename QTo>
constexpr ratio cast_ratio(const QFrom& from, const QTo& to)
{
using FromU = TYPENAME Q1::unit;
using ToU = TYPENAME Q2::unit;
using FromU = TYPENAME QFrom::unit;
using ToU = TYPENAME QTo::unit;
if constexpr(same_unit_reference<FromU, ToU>::value) {
return FromU::ratio / ToU::ratio;
}
else {
return quantity_ratio(from) / quantity_ratio(to);
return quantity_ratio<QFrom> / quantity_ratio<QTo>;
}
}